rare crash that I havn't been able to repro:

6d9ab2a0: StepMania!00000000
77d48734: USER32!GetDC [77d40000+86c7+6d]
77d4d05b: USER32!EnumDisplayMonitors [77d40000+cf63+f8]
77d4b4c0: USER32!DefWindowProcW [77d40000+b33c+184]
77d4cf9e: USER32!EnumDisplayMonitors [77d40000+cf63+3b]
7c90eae3: ntdll!KiUserCallbackDispatcher [7c900000+ead0+13]
77d4daf6: USER32!DestroyWindow [77d40000+daea+c]
005ddc02: void GraphicsWindow::DestroyGraphicsWindow(void)
005de55e: void GraphicsWindow::Shutdown(void)
7c917304: ntdll!LdrUnloadDll [7c900000+1718b+179]
006716eb: RageDisplay_D3D::~RageDisplay_D3D(void)

0x6d9ab2a0 lies within D3D8.DLL, which LdrUnloadDll unloaded.

stepmania/src/RageDisplay_D3D.cpp

@@ -293,6 +293,10 @@ RageDisplay_D3D::~RageDisplay_D3D()
 		g_pd3d = NULL;
 	}
 
+	GraphicsWindow::Shutdown();
+
+	/* Even after we call Release(), D3D may still affect our window.  It seems to subclass
+	 * the window, and never release it.  Free the window after destroying the window. */
 #if !defined(XBOX)
 	if( g_D3D8_Module )
 	{
@@ -300,8 +304,6 @@ RageDisplay_D3D::~RageDisplay_D3D()
 		g_D3D8_Module = NULL;
 	}
 #endif
-
-	GraphicsWindow::Shutdown();
 }
 
 void RageDisplay_D3D::GetDisplayResolutions( DisplayResolutions &out ) const